Figure 1 (IMAGE) Institute for Basic Science Caption A) An example generative model showing an organism with N = 3 genes and two cell types. Circles represent all possible cell types. The organism is composed of cell types represented by white circles and does not contain the gray cell types. Binary strings written inside the circles represent the presence (1) or absence (0) of determinants in those cell types. B) Schematic of "organismal development" in the model. All cell types synchronously undergo cell division, exchange signals, and respond to signals through gene regulation until reaching a steady state. C) Lineage graph of the homeostatic organism in A. Credit Institute for Basic Science Usage Restrictions Attribution Required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.